General Description

The MAX1298/MAX1299 implement local and remote

temperature sensing with 12-bit resolution, using +5V

and +3V supply voltages, respectively. Accuracy is

±1°C from 0 to +70°C, with no calibration needed. The

devices feature an algorithmic switched-capacitor ana-

log-to-digital converter (ADC), an on-chip clock, and a

3-wire serial interface compatible with SPI, QSPI™, and

The MAX1298/MAX1299 also perform fully differential

voltage measurements with 12-bit resolution and sepa-

rate track-and-hold (T/H) for positive and negative

inputs. Both devices accept versatile input modes con-

sisting of two 3-channel signal pairs, five 1-channel sig-

external reference may be used for more accurate volt-

age measurements.

Typical power consumption is only 1.3mW (MAX1299).

A shutdown mode and two standby modes provide

multiple strategies for prolonging battery life in portable

applications that require limited sampling throughput.

The MAX1298/MAX1299 are available in 16-pin SSOP

packages.

________________________Applications

Temperature/Voltage Supervision of

Workstations and Communications Equipment

Hand-Held Instruments

Medical Equipment

Industrial Process Control

Features

o Local and Remote Temperature Sensing

o 12-Bit Resolution for Temperature and Voltage

Inputs

o ±1°C Accuracy from -40°C to +85°C

o Fully Differential Inputs

o Single-Supply Operation

+4.75V to +5.25V (MAX1298)

+2.7V to +3.6V (MAX1299)

o 3-Wire SPI/QSPI/MICROWIRE-Compatible

Interface

o Internal Precision Voltage Reference

2.50V (MAX1298)

1.20V (MAX1299)

o Space-Saving 16-Pin SSOP Package

12-Bit Serial-Output Temperature Sensors

with 5-Channel ADC

________________________________________________________________

Maxim Integrated Products

1

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

AIN1

AIN0

AIN5

REF

GND

SCLK

DIN

DOUT

TOP VIEW

MAX1298

MAX1299

SSOP

SHO

AIN2

GND

AIN3

AIN4

SSTRB

CS

+

Pin Configuration

19-1726; Rev 1; 3/12

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

+

Denotes a lead(Pb)-free/RoHS-compliant package.

Typical Operating Circuit appears at end of data sheet.

QSPI is a trademark of Motorola, Inc.

MICROWIRE is a registered trademark of National Semiconductor Corp.

PART

TEMP RANGE

PIN-PACKAGE

MAX1298CEAE+

-40

°C to +85°C

16 SSOP

MAX1299CEAE+

-40

°C to +85°C

16 SSOP